Campus safety early warning system based on big data

Abstract

The invention discloses a campus safety early warning system based on big data, and solves the problems that in the prior art, monitoring and early warning have dead angles during campus monitoring, and people outside a campus cannot be recognized. The system comprises a data acquisition module used for acquiring video data and audio data in a monitoring area, a data transmission module connected with the data acquisition module and used for transmitting the video data and the audio data, and a data processing and analyzing module connected with the data transmission module and used for processing and analyzing the video data and the audio data. The data storage module is connected with the data transmission module and used for storing video data and audio data, and the face database and the keyword information base are connected with the data processing and analyzing module. According to the invention, the data processing and analyzing module can process and analyze the video data and the audio data in the monitoring area acquired by the data acquisition module, so that people outside the campus are prevented from entering the campus.

Description

Technical Field

[0001] The present invention belongs to the technical field of monitoring equipment, and in particular relates to a campus safety early warning system based on big data. Background Art

[0002] The campus security monitoring and early warning device is a device used to monitor various security incidents on campus and issue early warnings in a timely manner. Its main functions include monitoring various areas on campus and detecting abnormal situations in real time. The campus security monitoring and early warning device is equipped with multiple cameras, covering key areas on campus, including school gates, corridors, classrooms, playgrounds and other places. These cameras can monitor in real time and capture various situations on campus. When an abnormal situation is detected, the device will issue an alarm through the alarm system, including sound alarms, light alarms, etc., to attract the attention of teachers, students and campus administrators, and take corresponding countermeasures.

[0003] In actual use, on the one hand, the monitoring range of the monitoring and early warning device is limited. When conducting monitoring and early warning, the monitoring range of the monitoring camera is limited, resulting in certain blind spots in the monitoring and early warning. As a result, when students engage in fighting, brawls and other uncivilized phenomena on campus, it is impossible to promptly report to the campus administrators to stop them. On the other hand, traditional cameras cannot intelligently identify when outsiders enter the campus without permission, making it impossible for staff to discover them in time, thereby increasing the hidden dangers of campus installations. When it rains, rainwater will adhere to the monitoring camera, causing the image monitored by the monitoring camera to be blurred. Summary of the invention

[0004] The present invention provides a campus safety early warning system based on big data to at least solve some of the above-mentioned technical problems.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A campus safety early warning system based on big data comprises a data acquisition module for acquiring video data and audio data in a monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the acquired video data and audio data with the information in the face database and the keyword information library, and transmits the comparison result to a background.

[0007] Furthermore, the data acquisition module includes a shell, a rotating mechanism arranged inside the shell, a camera arranged on the rotating mechanism for collecting video information, and a microphone arranged on the shell for collecting audio information, a control component arranged in the campus monitoring room and connected to the rotating mechanism, the camera and the microphone; a transparent protective cover is provided on the shell, a cleaning mechanism for cleaning the transparent protective cover is provided on the shell, and the control component is connected to the data transmission module.

[0008] Furthermore, the control component includes a microprocessor connected to the data transmission module, a digital processing chip connected to the microprocessor, an image processing chip and a sound processing chip connected to the digital processing chip; the image processing chip is used to correct the face image and face information of the video information collected by the camera through a face alignment algorithm, extract face information features from the high-quality face image, thereby extracting face information, and transmitting the extracted face information to the data processing and analysis module for comparative analysis; the sound processing chip is used to analyze and compare the audio information collected by the microphone, and determine the sound source signal of each character target, separate the mixed sound source signals, obtain independent sound source signals of each character, extract keywords in the independent sound source signals and transmit them to the data processing and analysis module for comparative analysis.

[0009] Furthermore, the rotating mechanism includes a mounting plate arranged in the shell, a rotating frame rotatably arranged in the shell, a first driving mechanism arranged on the mounting plate for driving the rotating frame to rotate, a rotating plate rotatably arranged on the rotating frame, and a second driving mechanism arranged on the rotating frame for driving the rotating plate to rotate; the video acquisition module is installed on the rotating plate and rotates synchronously with the rotating plate, and the microphone is installed on the shell.

[0010] Furthermore, the first driving mechanism includes a first servo motor arranged on the mounting plate, a driving gear arranged on the output end of the first servo motor, a connecting shaft arranged on the rotating frame, and a driven gear arranged on the connecting shaft and meshing with the driving gear.

[0011] Furthermore, a pair of rotating mounting seats are provided on the rotating frame, and two rotating shafts are provided on the rotating plate. The two rotating shafts are rotatably mounted in the two rotating mounting seats respectively, and one of the rotating shafts extends out of the mounting seats and is connected to the second driving mechanism.

[0012] Furthermore, the second driving mechanism includes a second servo motor arranged in the rotating frame and rotating synchronously with the rotating frame, a driving synchronous pulley arranged on the output end of the second servo motor, a driven synchronous pulley arranged on the rotating shaft, and a synchronous belt installed between the driving synchronous pulley and the driven synchronous pulley.

[0013] Furthermore, the cleaning mechanism includes an arc-shaped bracket rotatably arranged on the shell, a brush arranged on the arc-shaped bracket and in contact with the outer wall of the transparent protective cover, and a third driving mechanism arranged on the shell and connected to the arc-shaped bracket for driving the arc-shaped bracket to operate.

[0014] Further, the third driving mechanism includes two mounting seats respectively arranged on both sides of the housing, a transmission shaft rotatably arranged in the mounting seats and connected to the arc-shaped bracket, and a third servo motor arranged in the housing and connected to the transmission shaft;

[0015] Furthermore, a mounting hole matched with the transmission shaft is provided in the mounting seat, sealing grooves are provided at both ends of the mounting hole, sealing rings are installed in the sealing grooves, and the transmission shaft is installed in the mounting hole and sealed with the sealing ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The invention has a simple structure, a scientific and reasonable design, and is easy to use. The data acquisition module of the invention can monitor the data distributed in various places in the school within the monitoring area, and transmit the video data and audio data collected by the data acquisition module to the data processing and analysis module through the data transmission module. The data processing and analysis module compares the video data and audio data collected by the data acquisition module with the face database and the keyword information library. If the face data processed and analyzed by the data processing and analysis module does not match the portrait database, the data processing and analysis module sends a warning signal through the early warning system. If the keywords in the audio data processed and analyzed by the data processing and analysis module correspond to the data in the keyword information library, the data processing and analysis module sends a warning signal through the early warning system, thereby facilitating the staff in the campus monitoring room to promptly discover abnormal situations in the campus. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention.

[0019] Figure 2 Schematic diagram of the driving mechanism of the present invention.

[0020] Figure 3 It is a schematic diagram of the cleaning mechanism of the present invention.

[0021] Figure 4 Schematic diagram of the control component of the present invention.

[0022] Figure 5 Schematic diagram of the mounting base of the present invention.

[0023] Figure 6 It is a control block diagram of the present invention.

[0024] The names corresponding to the reference numerals are:

[0025] 1. Shell; 2. Rotating frame; 3. Transparent protective cover; 4. Mounting plate; 5. First servo motor; 6. Driving gear; 7. Driven gear; 8. Rotating mounting seat; 9. Rotating plate; 11. Rotating shaft; 12. Second servo motor; 13. Driving synchronous pulley; 14. Driven synchronous pulley; 15. Synchronous belt; 16. Camera; 17. Microphone; 22. Image processing chip; 23. Sound processing chip; 24. Digital processing chip; 25. Microprocessor; 27. Arc bracket; 28. Brush; 29. ​​Mounting seat; 30. Transmission shaft; 31. Third servo motor; 32. Mounting hole; 33. Sealing groove; 34. Sealing ring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore they cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; of course, it can also be a mechanical connection or an electrical connection; in addition, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example 1.

[0030] like Figure 1-6As shown, the present invention provides a campus safety early warning system based on big data, including a data acquisition module for collecting video data and audio data in a monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the collected video data and audio data with the information in the face database and the keyword information library, and transmits the comparison result to the background.

[0031] The data acquisition module of the present invention can monitor the data distributed in various places of the school in the monitoring area, and transmit the video data and audio data collected by the data acquisition module to the data processing and analysis module through the data transmission module. The data processing and analysis module compares the video data and audio data collected by the data acquisition module with the face database and the keyword information library. If the face data processed and analyzed by the data processing and analysis module does not match the portrait database, the data processing and analysis module sends a warning signal through the early warning system. If the keywords in the audio data processed and analyzed by the data processing and analysis module correspond to the data in the keyword information library, the data processing and analysis module sends a warning signal through the early warning system, so that the staff in the campus monitoring room can find abnormal situations in the campus in time. The face information in the portrait database of the present invention is the face information of the staff, students and teachers in the campus, so as to prevent outsiders from entering the campus, and at the same time, timely discover the uncivilized phenomena such as fighting and brawling among students in the campus, so as to reduce the safety hazards of students in the school.

[0032] Example 2.

[0033] like Figure 1-6 As shown, the present invention provides a campus safety early warning system based on big data, including a data acquisition module for collecting video data and audio data in a monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the collected video data and audio data with the information in the face database and the keyword information library, and transmits the comparison result to the background.

[0034] The data acquisition module includes a shell 1, a rotating mechanism arranged in the shell 1, a camera 16 arranged on the rotating mechanism for collecting video information, a microphone 17 arranged on the shell 1 for collecting audio information, and a control component arranged in the shell 1 and connected to the rotating mechanism, the camera 16 and the microphone 17; a transparent protective cover 3 is provided on the shell 1, and a cleaning mechanism for cleaning the transparent protective cover 3 is provided on the shell 1, and the control component is connected to the data transmission module.

[0035] Based on Example 1, this Example 2 provides a more preferred structure of the data acquisition module, specifically: the data acquisition module includes a shell 1, a rotating mechanism arranged in the shell 1, a camera 16 arranged on the rotating mechanism for collecting video information, a microphone 17 arranged on the shell 1 for collecting audio information, and a control component arranged in the shell 1 and connected to the rotating mechanism, the camera 16 and the microphone 17; a transparent protective cover 3 is provided on the shell 1, and a cleaning mechanism for cleaning the transparent protective cover 3 is provided on the shell 1, and the control component is connected to the data transmission module.

[0036] When the present invention is in use, the camera 16 can rotate with the rotating mechanism, so as to facilitate the adjustment of the monitoring area of ​​the camera 16. At the same time, a microphone 17 is provided on the housing 1, and the microphone 17 can collect audio information in the monitoring area. At the same time, a direct conversation can be conducted through the microphone 17, so that the staff in the campus monitoring room can issue a voice to stop the student's behavior. The rotating mechanism can be controlled by the control component, so as to adjust the angle of the camera 16 by the control component;

[0037] The control component can analyze the video information collected by the camera 16, extract the facial image and facial information therefrom, and transmit them to the data processing and analysis module through the data transmission module. The data processing and analysis module compares the collected facial information with the facial information in the portrait database. If the data processing and analysis module does not match the collected facial information with the facial information in the portrait database, the data processing and analysis module issues a warning message through the early warning system. At the same time, artificial intelligence technology analyzes the behavior of students to prevent them from fighting on campus.

[0038] The control component can analyze the sound collected by the microphone 17 to determine the sound source signal of each character target, and separate the mixed sound source signals to obtain the independent sound source signal of the character, so as to extract the keywords in the independent sound source signal and transmit them to the data processing and analysis module for comparative analysis. If the sound source signal analyzed by the data processing and analysis module matches the keyword information in the keyword database, the data processing and analysis module will issue a warning message through the warning system.

[0039] Example 3.

[0040] like Figure 1-6 As shown, the present invention provides a campus safety early warning system based on big data, including a data acquisition module for collecting video data and audio data in a monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the collected video data and audio data with the information in the face database and the keyword information library, and transmits the comparison result to the background.

[0041] The data acquisition module includes a shell 1, a rotating mechanism arranged in the shell 1, a camera 16 arranged on the rotating mechanism for collecting video information, and a microphone 17 arranged on the shell 1 for collecting audio information, and a control component arranged in the campus monitoring room and connected to the rotating mechanism, the camera 16 and the microphone 17; a transparent protective cover 3 is provided on the shell 1, and a cleaning mechanism for cleaning the transparent protective cover 3 is provided on the shell 1, and the control component is connected to the data transmission module.

[0042] The control component includes a microprocessor 25 connected to the data transmission module, a digital processing chip 24 connected to the microprocessor 25, an image processing chip 22 and a sound processing chip 23 connected to the digital processing chip 24; the image processing chip 22 is used to correct the face image and face information of the video information collected by the camera 16 through a face alignment algorithm, extract face information features from the high-quality face image, thereby extracting face information, and transmitting the extracted face information to the data processing and analysis module for comparative analysis; the sound processing chip 23 is used to analyze and compare the audio information collected by the microphone 17, and determine the sound source signal of each character target, separate the mixed sound source signals, obtain independent sound source signals of each character, extract keywords in the independent sound source signals and transmit them to the data processing and analysis module for comparative analysis.

[0043] Based on Example 2, this Example 3 provides a more preferred structure of the control component, specifically: it includes a microprocessor 25 connected to the data transmission module, a digital processing chip 24 connected to the microprocessor 25, an image processing chip 22 and a sound processing chip 23 connected to the digital processing chip 24; the image processing chip 22 is used to correct the face image and face information of the video information collected by the camera 16 through a face alignment algorithm, extract face information features from the high-quality face image, thereby extracting face information, and transmitting the extracted face information to the data processing and analysis module for comparative analysis; the sound processing chip 23 is used to analyze and compare the audio information collected by the microphone 17, and determine the sound source signal of each character target, separate the mixed sound source signals, obtain independent sound source signals of each character, extract keywords in the independent sound source signals and transmit them to the data processing and analysis module for comparative analysis.

[0044] The microprocessor 25 of the present invention is connected to the data transmission module, the digital processing chip 24 is connected to the microprocessor 25, the image processing chip 22 and the sound processing chip 23 are connected to the digital processing chip 24. When in use, the image processing chip 22 is used to correct the face image and face information of the video information collected by the camera 16 through a face alignment algorithm, extract face information features from the high-quality face image, thereby extracting face information, and transmitting the extracted face information to the digital processing chip 24. The digital processing chip 24 converts the face information into a digital signal and transmits it to the microprocessor 25. The microprocessor 25 transmits the face information to the data processing and analysis module through the face information. The data processing and analysis module compares the processed face information with the face in the face database, thereby determining whether the person is an on-campus person.

[0045] The sound processing chip 23 is used to analyze and compare the audio information collected by the microphone 17, and determine the sound source signal of each character target, separate the mixed sound source signals, obtain independent sound source signals of each character, extract the keywords in the independent sound source signals and transmit them to the digital processing chip 24, the digital processing chip 24 converts the detected keyword information into digital signals, and transmits it to the microprocessor 25, the microprocessor 25 transmits it to the data processing and analysis module through the data transmission module, the data processing and analysis module compares the detected keyword information with the information in the keyword information library, so as to facilitate the understanding of the situation on campus.

[0046] Example 4.

[0047] like Figure 1-6As shown, the present invention provides a campus safety early warning system based on big data, including a data acquisition module for collecting video data and audio data in a monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the collected video data and audio data with the information in the face database and the keyword information library, and transmits the comparison result to the background.

[0048] The data acquisition module includes a shell 1, a rotating mechanism arranged in the shell 1, a camera 16 arranged on the rotating mechanism for collecting video information, and a microphone 17 arranged on the shell 1 for collecting audio information, and a control component arranged in the campus monitoring room and connected to the rotating mechanism, the camera 16 and the microphone 17; a transparent protective cover 3 is provided on the shell 1, and a cleaning mechanism for cleaning the transparent protective cover 3 is provided on the shell 1, and the control component is connected to the data transmission module.

[0049] The rotating mechanism includes a mounting plate 4 arranged in the shell 1, a rotating frame 2 rotatably arranged in the shell 1, a first driving mechanism arranged on the mounting plate 4 for driving the rotating frame 2 to rotate, a rotating plate 9 rotatably arranged on the rotating frame 2, and a second driving mechanism arranged on the rotating frame 2 for driving the rotating plate 9 to rotate; the camera 16 is installed on the rotating plate 9 and rotates synchronously with the rotating plate 9.

[0050] Based on Example 2, this Example 4 provides a more preferred structure of the rotating mechanism, specifically: the rotating mechanism includes a mounting plate 4 arranged in the shell 1, a rotating frame 2 rotatably arranged in the shell 1, a first driving mechanism arranged on the mounting plate 4 for driving the rotating frame 2 to rotate, a rotating plate 9 rotatably arranged on the rotating frame 2, and a second driving mechanism arranged on the rotating frame 2 for driving the rotating plate 9 to rotate; the camera 16 is installed on the rotating plate 9 and rotates synchronously with the rotating plate 9.

[0051] The mounting plate 4 of the present invention can facilitate the installation of the first driving mechanism, and the first driving mechanism can drive the rotating frame 2 to rotate, so as to facilitate the adjustment of the angle of the camera 16. The rotating plate 9 can facilitate the installation of the camera 16, and is connected to the rotating plate 9 through the second driving mechanism. The second driving mechanism drives the rotating plate 9 to rotate, so that the camera 16 on the rotating plate 9 moves synchronously, so as to facilitate the adjustment of the angle of the camera.

[0052] Example 5.

[0053] like Figure 1-6As shown, the present invention provides a campus safety early warning system based on big data, including a data acquisition module for collecting video data and audio data in a monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the collected video data and audio data with the information in the face database and the keyword information library, and transmits the comparison result to the background.

[0054] The data acquisition module includes a shell 1, a rotating mechanism arranged in the shell 1, a camera 16 arranged on the rotating mechanism for collecting video information, and a microphone 17 arranged on the shell 1 for collecting audio information, and a control component arranged in the campus monitoring room and connected to the rotating mechanism, the camera 16 and the microphone 17; a transparent protective cover 3 is provided on the shell 1, and a cleaning mechanism for cleaning the transparent protective cover 3 is provided on the shell 1, and the control component is connected to the data transmission module.

[0055] The rotating mechanism includes a mounting plate 4 arranged in the shell 1, a rotating frame 2 rotatably arranged in the shell 1, a first driving mechanism arranged on the mounting plate 4 for driving the rotating frame 2 to rotate, a rotating plate 9 rotatably arranged on the rotating frame 2, and a second driving mechanism arranged on the rotating frame 2 for driving the rotating plate 9 to rotate; the video acquisition module is installed on the rotating plate 9 and rotates synchronously with the rotating plate 9, and the microphone 17 is installed on the shell 1.

[0056] The first driving mechanism includes a first servo motor 5 arranged on the mounting plate 4 , a driving gear 6 arranged on the output end of the first servo motor 5 , a connecting shaft arranged on the rotating frame 2 , and a driven gear 7 arranged on the connecting shaft and meshing with the driving gear 6 .

[0057] This embodiment 5 provides a more preferred structure of the first driving mechanism on the basis of embodiment 4, specifically: the first driving mechanism includes a first servo motor 5 arranged on the mounting plate 4, a driving gear 6 arranged on the output end of the first servo motor 5, a connecting shaft arranged on the rotating frame 2, and a driven gear 7 arranged on the connecting shaft and meshing with the driving gear 6; the control component is connected to the first servo motor 5.

[0058] The first servo motor 5 of the present invention is installed on the mounting plate 4 and connected to the microprocessor 25. The output of the first servo motor 5 rotates through the mounting plate 4 and is connected to the driving gear 6. A connecting shaft is provided in the middle of the rotating frame 2, and a driven gear 7 meshing with the driving gear 6 is provided on the connecting shaft. When in use, the control component controls the operation of the first servo motor 5, the first servo motor 5 drives the driving gear 6 to rotate, the driving gear 6 drives the driven gear 7 to rotate, and the driven gear 7 drives the connecting shaft to rotate, thereby driving the rotating frame 2 to rotate in the shell 1, thereby adjusting the shooting angle of the camera 16.

[0059] Example 6.

[0060] like Figure 1-6 As shown, the present invention provides a campus safety early warning system based on big data, including a data acquisition module for collecting video data and audio data in a monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the collected video data and audio data with the information in the face database and the keyword information library, and transmits the comparison result to the background.

[0061] The data acquisition module includes a shell 1, a rotating mechanism arranged in the shell 1, a camera 16 arranged on the rotating mechanism for collecting video information, and a microphone 17 arranged on the shell 1 for collecting audio information, and a control component arranged in the campus monitoring room and connected to the rotating mechanism, the camera 16 and the microphone 17; a transparent protective cover 3 is provided on the shell 1, and a cleaning mechanism for cleaning the transparent protective cover 3 is provided on the shell 1, and the control component is connected to the data transmission module.

[0062] The rotating mechanism includes a mounting plate 4 arranged in the shell 1, a rotating frame 2 rotatably arranged in the shell 1, a first driving mechanism arranged on the mounting plate 4 for driving the rotating frame 2 to rotate, a rotating plate 9 rotatably arranged on the rotating frame 2, and a second driving mechanism arranged on the rotating frame 2 for driving the rotating plate 9 to rotate; the video acquisition module is installed on the rotating plate 9 and rotates synchronously with the rotating plate 9, and the microphone 17 is installed on the shell 1.

[0063] A pair of rotating mounting seats 8 are disposed on the rotating frame 2, and two rotating shafts 11 are disposed on the rotating plate 9. The two rotating shafts 11 are rotatably mounted in the two rotating mounting seats 8 respectively, and one of the rotating shafts 11 extends out of the mounting seat 29 and is connected to the second driving mechanism.

[0064] Based on Example 4, this Example 6 provides a more preferred structure of the rotating frame 2, specifically: a pair of rotating mounting seats 8 are provided on the rotating frame 2, and two rotating shafts 11 are provided on the rotating plate 9. The two rotating shafts 11 are respectively rotatably installed in the two rotating mounting seats 8, and one of the rotating shafts 11 extends out of the mounting seat 29 and is connected to the second driving mechanism.

[0065] A pair of rotating mounting seats 8 are provided on the rotating frame 2 of the present invention, and a rotating plate 9 is installed between the two rotating mounting seats 8 and connected to a driving mechanism, and the driving mechanism is connected to a control component. During use, the control component controls the rotating plate 9 to rotate between the two rotating mounting seats 8, thereby adjusting the angle of the detection component on the rotating plate 9, so that the detection component can monitor abnormal conditions on campus.

[0066] Example 7.

[0067] like Figure 1-6 As shown, the present invention provides a campus safety early warning system based on big data, including a data acquisition module for collecting video data and audio data in a monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the collected video data and audio data with the information in the face database and the keyword information library, and transmits the comparison result to the background.

[0068] The data acquisition module includes a shell 1, a rotating mechanism arranged in the shell 1, a camera 16 arranged on the rotating mechanism for collecting video information, and a microphone 17 arranged on the shell 1 for collecting audio information, and a control component arranged in the campus monitoring room and connected to the rotating mechanism, the camera 16 and the microphone 17; a transparent protective cover 3 is provided on the shell 1, and a cleaning mechanism for cleaning the transparent protective cover 3 is provided on the shell 1, and the control component is connected to the data transmission module.

[0069] The rotating mechanism includes a mounting plate 4 arranged in the shell 1, a rotating frame 2 rotatably arranged in the shell 1, a first driving mechanism arranged on the mounting plate 4 for driving the rotating frame 2 to rotate, a rotating plate 9 rotatably arranged on the rotating frame 2, and a second driving mechanism arranged on the rotating frame 2 for driving the rotating plate 9 to rotate; the video acquisition module is installed on the rotating plate 9 and rotates synchronously with the rotating plate 9, and the microphone 17 is installed on the shell 1.

[0070] A pair of rotating mounting seats 8 are disposed on the rotating frame 2, and two rotating shafts 11 are disposed on the rotating plate 9. The two rotating shafts 11 are rotatably mounted in the two rotating mounting seats 8 respectively, and one of the rotating shafts 11 extends out of the mounting seat 29 and is connected to the second driving mechanism.

[0071] The second driving mechanism includes a second servo motor 12 arranged in the rotating frame 2 and rotating synchronously with the rotating frame 2, a driving synchronous pulley 13 arranged on the output end of the second servo motor 12, a driven synchronous pulley 14 arranged on the rotating shaft 11, and a synchronous belt 15 installed between the driving synchronous pulley 13 and the driven synchronous pulley 14; the control component is connected to the second servo motor 12.

[0072] Based on Example 6, this Example 7 provides a more preferred structure of the second driving mechanism, specifically: the second driving mechanism includes a second servo motor 12 arranged in the rotating frame 2 and rotating synchronously with the rotating frame 2, a driving synchronous pulley 13 arranged on the output end of the second servo motor 12, a driven synchronous pulley 14 arranged on the rotating shaft 11, and a synchronous belt 15 installed between the driving synchronous pulley 13 and the driven synchronous pulley 14.

[0073] The second servo motor 12 is arranged on the inner wall of the rotating frame 2 and is connected to the microprocessor 25, and the active synchronous pulley 13 and the driven synchronous pulley 14 on the output end of the second servo motor 12 are installed on the rotating shaft 11, and the active synchronous pulley 13 and the driven synchronous pulley 14 are connected by a synchronous belt 15. When in use, the microprocessor 25 controls the operation of the second servo motor 12, the second servo motor 12 drives the active synchronous pulley 13 to rotate, the active synchronous pulley 13 drives the driven synchronous pulley 14 to rotate through the synchronous belt 15, and the driven synchronous pulley 14 drives the rotating shaft 11 to rotate, thereby driving the rotating plate 9 to rotate, so as to adjust the angle of the camera 16.

[0074] Example 8.

[0075] like Figure 1-6 As shown, the present invention provides a campus safety early warning system based on big data, including a data acquisition module for collecting video data and audio data in a monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the collected video data and audio data with the information in the face database and the keyword information library, and transmits the comparison result to the background.

[0076] The cleaning mechanism includes an arc-shaped bracket 27 rotatably arranged on the shell 1, a brush 28 arranged on the arc-shaped bracket 27 and in contact with the outer wall of the transparent protective cover 3, and a third driving mechanism arranged on the shell 1 and connected to the arc-shaped bracket 27 for driving the arc-shaped bracket 27 to operate.

[0077] This embodiment 8 provides a more preferred structure of the cleaning mechanism based on embodiment 2, and the cleaning mechanism includes an arc-shaped bracket 27 rotatably arranged on the shell 1, a brush 28 arranged on the arc-shaped bracket 27 and in contact with the outer wall of the transparent protective cover 3, and a third driving mechanism arranged on the shell 1 and connected to the arc-shaped bracket 27 for driving the arc-shaped bracket 27 to operate.

[0078] The arc bracket 27 of the present invention is rotatably mounted on the shell 1, and a brush 28 in contact with the outer wall of the transparent protective cover 3 is provided on the arc bracket 27. The second driving mechanism is installed on the inner wall of the shell 1. During use, the microprocessor 25 controls the second driving mechanism to drive the arc bracket 27 to operate, and the arc bracket 27 drives the brush 28 to slide on the outer wall of the transparent protective cover 3, thereby cleaning the rainwater on the transparent protective cover 3 and preventing the rainwater from staying on the outer wall of the transparent protective cover 3.

[0079] Example 9.

[0080] like Figure 1-6 As shown, the present invention provides a campus safety early warning system based on big data, including a data acquisition module for collecting video data and audio data in a monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the collected video data and audio data with the information in the face database and the keyword information library, and transmits the comparison result to the background.

[0081] The data acquisition module includes a shell 1, a rotating mechanism arranged in the shell 1, a camera 16 arranged on the rotating mechanism for collecting video information, and a microphone 17 arranged on the shell 1 for collecting audio information, and a control component arranged in the campus monitoring room and connected to the rotating mechanism, the camera 16 and the microphone 17; a transparent protective cover 3 is provided on the shell 1, and a cleaning mechanism for cleaning the transparent protective cover 3 is provided on the shell 1, and the control component is connected to the data transmission module.

[0082] The cleaning mechanism includes an arc-shaped bracket 27 rotatably arranged on the shell 1, a brush 28 arranged on the arc-shaped bracket 27 and in contact with the outer wall of the transparent protective cover 3, and a third driving mechanism arranged on the shell 1 and connected to the arc-shaped bracket 27 for driving the arc-shaped bracket 27 to operate.

[0083] The third driving mechanism includes two mounting seats 29 respectively arranged on both sides of the housing 1 , a transmission shaft 30 rotatably arranged in the mounting seats 29 and connected to the arc-shaped bracket 27 , and a third servo motor 31 arranged in the housing 1 and connected to the transmission shaft 30 .

[0084] This embodiment 9 provides a more preferred structure of the second driving mechanism on the basis of embodiment 8, specifically: the third driving mechanism includes two mounting seats 29 respectively arranged on both sides of the shell 1, a transmission shaft 30 rotatably arranged in the mounting seats 29 and connected to the arc bracket 27, and a third servo motor 31 arranged in the shell 1 and connected to the transmission shaft 30.

[0085] The two mounting seats 29 of the present invention are respectively mounted on both sides of the shell 1, and a transmission shaft 30 connected to the arc-shaped bracket 27 is rotatably provided in the mounting seat 29, and a third servo motor 31 connected to the transmission shaft 30 is provided on the inner wall of the shell 1. During use, the third servo motor 31 drives the transmission shaft 30 to rotate, and the transmission shaft 30 drives the arc-shaped bracket 27 to rotate. During use, the third servo motor 31 is connected to the microprocessor 25, and the microprocessor 25 controls the third servo motor 31 to operate, the third servo motor 31 drives the transmission shaft 30 to rotate, the transmission shaft 30 drives the arc-shaped bracket 27 to rotate, and the arc-shaped bracket 27 drives the brush 28 to slide on the outer wall of the transparent protective cover 3, thereby facilitating the cleaning of the transparent protective cover 3 and preventing rainwater from staying on the transparent protective cover 3.

[0086] Example 10.

[0087] like Figure 1-6 As shown, the present invention provides a campus safety early warning system based on big data, including a data acquisition module for collecting video data and audio data in a monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the collected video data and audio data with the information in the face database and the keyword information library, and transmits the comparison result to the background.

[0088] The data acquisition module includes a shell 1, a rotating mechanism arranged in the shell 1, a camera 16 arranged on the rotating mechanism for collecting video information, and a microphone 17 arranged on the shell 1 for collecting audio information, and a control component arranged in the campus monitoring room and connected to the rotating mechanism, the camera 16 and the microphone 17; a transparent protective cover 3 is provided on the shell 1, and a cleaning mechanism for cleaning the transparent protective cover 3 is provided on the shell 1, and the control component is connected to the data transmission module.

[0089] The cleaning mechanism includes an arc-shaped bracket 27 rotatably arranged on the shell 1, a brush 28 arranged on the arc-shaped bracket 27 and in contact with the outer wall of the transparent protective cover 3, and a third driving mechanism arranged on the shell 1 and connected to the arc-shaped bracket 27 for driving the arc-shaped bracket 27 to operate.

[0090] The third driving mechanism includes two mounting seats 29 respectively arranged on both sides of the housing 1, a transmission shaft 30 rotatably arranged in the mounting seats 29 and connected to the arc-shaped bracket 27, and a third servo motor 31 arranged in the housing 1 and connected to the transmission shaft 30;

[0091] The mounting seat 29 is provided with a mounting hole 32 matched with the transmission shaft 30 , and sealing grooves 33 are respectively provided at both ends of the mounting hole 32 . A sealing ring 34 is installed in the sealing groove 33 . The transmission shaft 30 is installed in the mounting hole 32 and is sealed with the sealing ring 34 .

[0092] Based on Example 9, this Example 10 provides a more preferred structure of the shell 1, specifically: a mounting hole 32 compatible with the transmission shaft 30 is provided in the mounting seat 29, sealing grooves 33 are provided at both ends of the mounting hole 32, and a sealing ring 34 is installed in the sealing groove 33. The transmission shaft 30 is installed in the mounting hole 32 and is sealed with the sealing ring 34.

[0093] The mounting seat 29 of the present invention is provided with a mounting hole 32 adapted to the transmission shaft 30, and sealing grooves 33 are respectively provided at both ends of the mounting hole 32. A sealing ring 34 is installed in the sealing groove 33. The transmission shaft 30 is installed in the mounting hole 32 and is sealed with the sealing ring 34. During use, a first bearing is provided in the mounting hole 32, and a sealing groove 33 is opened in the mounting hole 32. The sealing ring 34 is installed in the sealing groove 33 and contacts with the transmission shaft 30, so that the transmission shaft 30 is sealed by the sealing ring 34 (here is a dynamic seal), thereby preventing rainwater from entering the transparent protective cover 3 to damage other components.

[0094] The data transmission module used in the present invention is preferably an optical fiber.

[0095] The first servo motor 5, the second servo motor 12, the camera 16, the microphone 17, the image processing chip 22, the sound processing chip 23, the digital processing chip 24, the microprocessor 25, and the third servo motor 31 used in the present invention are all prior arts and can be directly purchased and used on the market. Therefore, the functions, circuits and principles of the first servo motor 5, the second servo motor 12, the camera 16, the microphone 17, the image processing chip 22, the sound processing chip 23, the digital processing chip 24, the microprocessor 25 and the third servo motor 31 are not described in detail here.

[0096] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, rather than limiting them, and certainly not limiting the patent scope of the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. In other words, any changes or modifications made to the main design concept and spirit of the present invention that have no substantive significance, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention in other related technical fields is also included in the patent protection scope of the present invention.

Claims

1. A campus safety early warning system based on big data, characterized in that: It includes a data acquisition module for acquiring video data and audio data within the monitoring area, a data transmission module connected to the data acquisition module for transmitting video data and audio data, a data processing and analysis module connected to the data transmission module for processing and analyzing video data and audio data, a data storage module connected to the data transmission module for storing video data and audio data, and a face database and a keyword information library connected to the data processing and analysis module. The data processing and analysis module compares the acquired video data and audio data with the information in the face database and the keyword information library, and transmits the comparison results to the background.

2. According to the big data-based campus safety early warning system of claim 1, it is characterized in that: The data acquisition module comprises a housing (1), a rotating mechanism arranged in the housing (1), a camera (16) arranged on the rotating mechanism for collecting video information, and a microphone (17) arranged on the housing (1) for collecting audio information, and a control component arranged in a campus monitoring room and connected to the rotating mechanism, the camera (16) and the microphone (17); a transparent protective cover (3) is arranged on the housing (1), a cleaning mechanism for cleaning the transparent protective cover (3) is arranged on the housing (1), and the control component is connected to the data transmission module.

3. According to the big data-based campus safety early warning system of claim 2, it is characterized in that: The control component comprises a microprocessor (25) connected to the data transmission module, a digital processing chip (24) connected to the microprocessor (25), an image processing chip (22) and a sound processing chip (23) connected to the digital processing chip (24); the image processing chip (22) is used to correct the face image and face information of the video information collected by the camera (16) through a face alignment algorithm, extract face information features from the high-quality face image, thereby extracting face information, and transmitting the extracted face information to the data processing and analysis module for comparison and analysis; the sound processing chip (23) is used to analyze and compare the audio information collected by the microphone (17), determine the sound source signal of each character target, separate the mixed sound source signals, obtain the independent sound source signals of each character, extract the keywords in the independent sound source signals and transmit them to the data processing and analysis module for comparison and analysis.

4. According to the big data-based campus safety early warning system of claim 2, it is characterized in that: The rotating mechanism comprises a mounting plate (4) arranged in a housing (1), a rotating frame (2) rotatably arranged in the housing (1), a first driving mechanism arranged on the mounting plate (4) for driving the rotating frame (2) to rotate, a rotating plate (9) rotatably arranged on the rotating frame (2), and a second driving mechanism arranged on the rotating frame (2) for driving the rotating plate (9) to rotate; a camera (16) is mounted on the rotating plate (9) and rotates synchronously with the rotating plate (9); and a control component is respectively connected to the first driving mechanism and the second driving mechanism.

5. According to the big data-based campus safety early warning system of claim 4, it is characterized in that: The first driving mechanism comprises a first servo motor (5) arranged on a mounting plate (4), a driving gear (6) arranged on an output end of the first servo motor (5), a connecting shaft arranged on a rotating frame (2), and a driven gear (7) arranged on the connecting shaft and meshing with the driving gear (6); the first servo motor (5) is connected to a control component.

6. A campus safety early warning system based on big data according to claim 4, characterized in that: A pair of rotating mounting seats (8) are provided on the rotating frame (2), and two rotating shafts (11) are provided on the rotating plate (9). The two rotating shafts (11) are respectively rotatably mounted in the two rotating mounting seats (8), and one of the rotating shafts (11) extends out of the mounting seat (29) and is connected to the second driving mechanism.

7. The campus safety early warning system based on big data according to claim 6 is characterized in that: The second driving mechanism comprises a second servo motor (12) arranged in the rotating frame (2) and rotating synchronously with the rotating frame (2), a driving synchronous belt pulley (13) arranged on the output end of the second servo motor (12), a driven synchronous belt pulley (14) arranged on the rotating shaft (11), and a synchronous belt (15) installed between the driving synchronous belt pulley (13) and the driven synchronous belt pulley (14); the second servo motor (12) is connected to the control component.

8. A campus safety early warning system based on big data according to claim 2, characterized in that: The cleaning mechanism comprises an arc-shaped bracket (27) rotatably arranged on the housing (1), a brush (28) arranged on the arc-shaped bracket (27) and in contact with the outer wall of the transparent protective cover (3), and a third driving mechanism arranged on the housing (1) and connected to the arc-shaped bracket (27) for driving the arc-shaped bracket (27) to operate.

9. The campus safety early warning system based on big data according to claim 8 is characterized in that: The third driving mechanism comprises two mounting seats (29) respectively arranged on both sides of the housing (1), a transmission shaft (30) rotatably arranged in the mounting seats (29) and connected to the arc-shaped bracket (27), and a third servo motor (31) arranged in the housing (1) and connected to the transmission shaft (30); the third servo motor (31) is connected to the control component.

10. The campus safety early warning system based on big data according to claim 8 is characterized in that: A mounting hole (32) matched with the transmission shaft (30) is provided in the mounting seat (29), sealing grooves (33) are provided at both ends of the mounting hole (32), a sealing ring (34) is installed in the sealing groove (33), and the transmission shaft (30) is installed in the mounting hole (32) and is sealed and connected to the sealing ring (34).

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